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Gold I
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mengchi501Gold I
mengchi5014
Gold I 1471129 until Platinum V
535 Solved3 Reverse rivals
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Date Added# Unlocked UsersTier
  • Beginner Problem-solver
    Solve 50 problems
    105K
  • Newbie Problem-solver
    Newbie Problem-solver
    Solve 10 problems
    150K
  • SciOI 2022
    SciOI 2022
    Participated in SciOI 2022, or solved 1 or more problems in its open contest
    226
  • Sinchon Station (2022)
    Sinchon Station (2022)
    Participated in 2022 ICPC Sinchon Summer Algorithm Camp Contest, or solved 1 or more problems in its open contest
    388
  • Level 4 Sprout
    Level 4 Sprout
    Solved problems for 16 days in a row
    19K
  • Level 3 Sprout
    Level 3 Sprout
    Solved problems for 8 days in a row
    36K
  • Level 2 Sprout
    Level 2 Sprout
    Solved problems for 4 days in a row
    78K
  • Level 1 Sprout
    Level 1 Sprout
    Solved problems for 2 days in a row
    124K
  • 12